(3x-5)(7x+5)=0

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Solution for (3x-5)(7x+5)=0 equation: 


Simplifying
(3x + -5)(7x + 5) = 0

Reorder the terms:
(-5 + 3x)(7x + 5) = 0

Reorder the terms:
(-5 + 3x)(5 + 7x) = 0

Multiply (-5 + 3x) * (5 + 7x)
(-5(5 + 7x) + 3x * (5 + 7x)) = 0
((5 * -5 + 7x * -5) + 3x * (5 + 7x)) = 0
((-25 + -35x) + 3x * (5 + 7x)) = 0
(-25 + -35x + (5 * 3x + 7x * 3x)) = 0
(-25 + -35x + (15x + 21x2)) = 0

Combine like terms: -35x + 15x = -20x
(-25 + -20x + 21x2) = 0

Solving
-25 + -20x + 21x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -7x)(5 + -3x) = 0


Subproblem 1
Set the factor '(-5 + -7x)' equal to zero and attempt to solve:

Simplifying
-5 + -7x = 0

Solving
-5 + -7x = 0

Move all terms containing x to the left, all other terms to the right.

Add '5' to each side of the equation.
-5 + 5 + -7x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -7x = 0 + 5
-7x = 0 + 5

Combine like terms: 0 + 5 = 5
-7x = 5

Divide each side by '-7'.
x = -0.7142857143

Simplifying
x = -0.7142857143

Subproblem 2
Set the factor '(5 + -3x)' equal to zero and attempt to solve:

Simplifying
5 + -3x = 0

Solving
5 + -3x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-5' to each side of the equation.
5 + -5 + -3x = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -3x = 0 + -5
-3x = 0 + -5

Combine like terms: 0 + -5 = -5
-3x = -5

Divide each side by '-3'.
x = 1.666666667

Simplifying
x = 1.666666667
Solution
x = {-0.7142857143, 1.666666667}

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